Slav Defense: Two Knights Attack

Before the first move

The Slav Defense is a rock-solid choice for Black, using the c6-pawn to bolster the center while keeping the light-squared bishop free. In the Two Knights Attack, White develops rapidly to pressure d5, leading to a sharp battle where Black often captures on c4 to challenge White's central control.

1. d4White

White plays d4, the most common way to start a closed game. By occupying the center, White prepares to develop the queenside pieces. Black has many ways to respond, including the flexible Nf6 or the classical d5.

1... d5Black · your move

Move your pawn to d5 to meet White's central claim head-on. This establishes a firm foothold in the center and prevents White from simply pushing e4 next. It is the foundation of many solid defensive setups.

Other paths here: Na6 (Australian Defense) · g5 (Borg Defense: Borg Gambit) · b6 (English Defense) · e5 (Englund Gambit)

2. c4White

White plays c4, the signature move of the Queen's Gambit. White is already putting the d5-pawn under pressure. While White could try the London System with Bf4 or the Blackmar-Diemer Gambit with e4, c4 is the most testing variation.

Other paths here: Qd3 (Amazon Attack) · e4 (Blackmar-Diemer Gambit) · e3 (Queen's Pawn Game) · Bf4 (Queen's Pawn Game: Accelerated London System)

2... c6Black · your move

Move your pawn to c6 to support the center. This is the Slav Defense. Unlike the Queen's Gambit Declined, this move keeps your light-squared bishop's path open, allowing it to develop to f5 or g4 later in the game.

Other paths here: c5 (Queen's Gambit Declined: Austrian Defense) · Bf5 (Queen's Gambit Declined: Baltic Defense) · Nf6 (Queen's Gambit Declined: Marshall Defense) · b5 (Queen's Gambit Declined: Zilbermints Gambit)

3. Nf3White

White plays Nf3, a standard developing move that reinforces the center. White could also choose the Exchange Variation with cxd5 or the aggressive Diemer Gambit with e4, but developing the knight is the most flexible and popular choice.

Other paths here: Nc3 (Slav Defense) · e4 (Slav Defense: Diemer Gambit) · cxd5 (Slav Defense: Exchange Variation) · Bf4 (Slav: 3.Bf4)

3... Nf6Black · your move

Bring your knight to f6. This develops a piece toward the center, prepares for castling, and adds a second defender to your d5-pawn. It is the most natural and strongest way to continue your development.

Other paths here: Bf5 (Slav: 3.Nf3 Bf5) · Bg4 (Slav: 3.Nf3 Bg4) · dxc4 (Slav: 3.Nf3 dxc4) · e6 (Semi-Slav Defense: Chigorin Defense)

4. Nc3White

White plays Nc3, completing the 'Two Knights' setup. White is now threatening to increase the tension on d5. Alternatives like e3 (the Quiet Variation) or Qb3 are slower, whereas Nc3 demands an immediate reaction from Black.

Other paths here: Bg5 (Slav Defense: Bonet Gambit) · Nbd2 (Slav Defense: Breyer Variation) · e3 (Slav Defense: Quiet Variation) · Qb3 (Slav: 4.Qb3)

4... dxc4Black · your move

Capture the pawn on c4. By taking the gambit pawn, you force White to spend time recovering it. This move initiates the Slav Accepted, leading to a dynamic struggle where you will try to hold the extra pawn or gain development.

Other paths here: a6 (Slav Defense: Chebanenko Variation) · g6 (Slav Defense: Schlechter Variation) · Qb6 (Slav Defense: Süchting Variation) · Bf5 (Slav: 4.Nc3 Bf5)

Where you stand

The position is dynamically balanced. White will likely play a4 to prevent b5, then try to recover the c4-pawn with e3 and Bxc4. Black's plan involves developing the light-squared bishop to f5 and the knight to d7, aiming for a solid setup. Both sides must balance piece activity against the structural tension in the center.

• a2-a4 Prevent Black from defending c4 with b5
• c8-f5 Develop the bishop to an active diagonal
• e2-e3 Prepare to recapture the pawn with the bishop
• b8-d7 Support the center and prepare e6
• f1-c4 Recapture the pawn and develop the bishop